Question37:-If the gain of a non-inverting averaging amplifier is one. Determine the input voltages, if the output voltage is
3v

AV (1) =6v, "V_(2)" = 3vand `५/ (3) =2v

0: ४ {1}` = 7५४, ` ४ {2}` = 4५ बाप (3)
Correct Answer:- Option-D
Question38:-In differential op-amp configuration a subtractor is called as
A:-Scaling amplifier
B:-All of the mentioned
C:-Summing amplifier
D:-Difference amplifier
Correct Answer:- Option-A
Question39:-An ideal operational amplifier has
A:-Infinite output impedance
B:-Zero input impedance
C:-Infinite bandwidth
D:-All of the above
Correct Answer:- Option-C
Question40:-How the op-amp comparator should be choosen to get higher speed of operation ?
A:-Wider bandwidth
B:-High slew rate
C:-Large gain
D:-None of the above
Correct Answer:- Option-A
Question41:-The gain of the first order low 0855 815
A:-Increases at the rate 20dB/decade
B:-Increases at the rate 40 dB/decade
C:-Decreases at the rate 20dB/decade
D:-Decreases at the rate 40dB/decade
Correct Answer:- Option-C
Question42:-The poles of the transfer function of nomalized low pass butter worth filter exists
A:-On unit circle
B:-Outside unit circle
C:-Inside unit circle
D:-None of the mentioned
Correct Answer:- Option-A
Question43:-A stable multivibrator operating at 150 Hz has a discharge time of 2.5 ms. The duty cycle of the circuit is
A:-50%
8:-75%
C:-95.99%
D:-37.5%
Correct Answer:- Option-D
Question44:-Calculate the output frequency in a frequency multiplier if, fin = 200 Hz is applied to 8 7 divide by N-network.
A:-1.2 kHz
B:-1.6 kHz
C:-1.4 kHz
D:-1.9 kHz
Correct Answer:- Option-C
Question45:-Convert binary 111111110010 to hexadecimal
A EE2_(16)
8:- 2 (16)
C:-'2FE_(16)"
0:- 602 (16)
Correct Answer:- Option-B
Question46:-Which gate is best used as a basic comparator 7
A:-NOR
B:-OR
C:-AND